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Updated: Jan 21, 2026

Gastrointestinal Motility Monitor GIMM
Published on: December 1, 2010
A Wireless Implantable System for Facilitating Gastrointestinal Motility.
Po-Min Wang1, Genia Dubrovsky2, James C Y Dunn1,2,3,4
1Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
A new wireless implantable system for gastrointestinal (GI) electrical stimulation was developed. This device shows potential for treating GI motility disorders by modulating smooth muscle activity and facilitating intestinal transit.
Area of Science:
- Biomedical Engineering
- Gastroenterology
- Medical Devices
Background:
- Gastrointestinal (GI) electrical stimulation is a promising treatment for GI motility disorders.
- Current limitations include the lack of miniaturized, versatile implantable stimulators for effective pattern investigation.
Purpose of the Study:
- To develop a wireless implantable GI modulation system to address the technology gap.
- To enable investigation of effective stimulation patterns for GI dysmotility.
Main Methods:
- Development of a wireless extraluminal gastrointestinal modulation device (EGMD).
- Integration with a rendezvous device (RD) and graphical user interface (GUI) for wireless power and configuration.
- Validation through bench-top and in vivo studies.
Main Results:
- The wireless implantable GI modulation system was successfully developed and validated.
- Preliminary in vivo chronic studies in porcine models demonstrated potential for facilitating intestinal transit.
Conclusions:
- The developed wireless implantable GI modulation system fills a critical technology gap.
- This system shows promise as a future therapeutic option for GI motility disorders.
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